December 20, 1851

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Features

Georgia Railroad

Air Line of Railroad to Boston

Safety of Railroads

The Philadelphia and Pittsburg Railroads

Stone Dressing by Machinery

California Quicksilver

Atmospheric Pressure as a Telegraphic and Mechanical Agent

A Great Blast

The Electric Telegraph in France

Spontaneous Combustion

To Our City Patrons

The Burial Place of John Fitch

Railroads in England

Suspension Bridge over the St. Lawrence

To Promote Adhesion in Locomotive Wheels

No Evading the Tolls

Cure for Headaches

A Japanese Compass

The Magnetic Telegraph Predicted

To Cure Nose Bleeding

Recent Foreign Inventions

Newspapers in the United States

Woven Cartridge Bags

Beardslee's Patent Planing Machine

Singular Accident by an Oil Can

Perpetual Motion

New Knitting Machine

Improved Smut Machine

Double Piston Engine

To Manufacture Resin Soap and Purify Turpentine

Improved Bed for Invalids

Submarine Railroad

Registering Blocks for Printing Oil Cloths

Re-Vaccination

The Washington Monument

New Motive Powers--Steam

Kossuth and Paul

Dr. Jackson on Patents

New American Steamships

Honor to an American Inventor

To Prevent Heating in Circular Saws

List of Patent Claims

The Way to Examine a Railroad

Lichens

A Worthy Migrating Printing Press

New Building Material in California

Wool in the United States

An Important Paragraph

Back Numbers and Volumes

Sending Receipts—Postage on Books

Explosion of Andirons

A Black Eye

To Mechanics

Testing the Heat of Artesian Wells

Warner's Pen

On Boiler s.--No. 4.

Departments

From the Editor

To Correspondents

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